package com.ds.common.org.expression.personlevel;

import java.util.List;
import java.util.Set;
import java.util.Stack;

import com.ds.common.expression.ParseException;
import com.ds.common.expression.function.Function;
import com.ds.org.*;
import com.ds.server.OrgManagerFactory;

 /**
  * 取得指定人员具有的人员职级
 * <p>Title: JDSORG组织机构中间件</p>
 * <p>Description: </p>
 * <p>Copyright: jds Copyright (c) 2003-2008</p>
 * <p>Company: www.justdos.net</p>
 * @author wenzhangli
 * @version 2.0
 */
public class GetPersonLevelByPerson extends Function {
	public GetPersonLevelByPerson() {
		numberOfParameters = 1;
	}

	public void run(Stack stack) throws ParseException
	{
		checkStack(stack); // check the stack

		Object param2 = stack.pop();

		stack.push(perform( param2));
	}

	protected Role perform(Object param1) throws ParseException {
		if (param1 == null) {
			return null;
		}
		//人员的标识
		if (param1 instanceof String) {
			String personId = (String)param1;
			OrgManager orgManager = OrgManagerFactory.getOrgManager();
			try {
				Person person = orgManager.getPersonByID(personId);
                Set<String> roles = person.getRoleIdList();
                for (String roleId : roles) {
                    Role role = null;
                    try {
                        role = orgManager.getRoleByID(roleId);
                    } catch (RoleNotFoundException e) {
                        e.printStackTrace();
                    }
                    if (role != null && role.getType().equals(RoleType.PersonLevel)) {
                      return role;
                    }
                }

			} catch (PersonNotFoundException e) {
				throw new ParseException("person not found!", e);
			}
		}
		//人员对象
		if (param1 instanceof Person) {
			return perform(((Person)param1).getID());
		}

		throw new ParseException("Invalid parameter type in:" + this.getClass().getName() + ", param1 is " + param1.getClass().getName());
	}
}